电弧炉超音速集束氧枪吹炼的钢水留碳操作实践

建立了70 t电弧炉冶炼中高碳钢的留碳操作的数学模型。按照出钢时钢水碳含量的要求,基于入炉废钢和铁水成分,控制超音速集束氧枪的吹炼参数,合理使用炉门自耗式碳氧枪和采用相应的炉渣碱度,以实现目标留碳操作。0.55%C钢的冶炼实践表明,当热装铁水30%时,电弧炉终点C]为0.40%～0.65%的炉次≥85%,显著降低了冶炼成本。

Catch Carbon Practice of Arc Furnace Ultrasonic Coherent Jet Oxygen Lance Blowing Liquid Steel

Mathematic model for catch carbon practice of steelmaking medium and high carbon steel in a 70 t arc fur- nace has been established.According to the requirement of carbon content in liquid steel at tapping,based on the chemical compositions of charged scrap and hot metal,the blowing parameters of ultrasonic coherent jet oxygen lance are controlled suitably to use consumable oxygen-carbon lance at door and the available slag basicity is used to carry out aim catch carbon practice.The steelmaking practice of ...